html, body {
    height: 100%;
    margin: 0;
    font-family: -apple-system,BlinkMacSystemFont,Roboto,Segoe UI,Helvetica Neue,Helvetica,Arial,sans-serif;    
}
.wrap {
    display: flex;
    height: 100%;   
}
/* sidebar  */
.sidebar {
    overflow: hidden;
    width: 200px;
    border-right: 2px solid #ccc;
}
.sidebar h1{
    margin: 10px;
    font-size: 20px;
    text-align: center;
    text-transform: uppercase;    
}

/* content */
.content {
    flex: 1;
}
.content iframe {
    width: 100%;
    height: 100%;
}